#while True:
 #   if name == '少羽':
#print('少羽骑老奶奶')
 #       break
 #   else:
   #     print('少羽不在家')

for i in range(11):
    if i>0 and i%2==0:
     print(i)
     break
    #break

    #break

#判断一个数字n是否识质数
n=10
a=2
while a<n:
    if n%a==0:
        print(n,'不是质数')
        break
    a += 1

n=8
for i in range(2,n):
    if n%i==0:
     print(n,"不是质数")
     break    
else:
    print(n,'是质数')
